sounds like you're an idea person :) Honestly, the most important thing about writing is just to do it, but also remember, you can just write what you want. Write down your story ideas, maybe one of them will take off, or you'll have them when you have some time or inclination to concentrate. Or maybe you will like writing short things--maybe you could turn your ideas into flash fiction or very short forms. There are lots of options and if you are not trying to sell things at first, there's no reason you have to try to start with a novel. I used to just write lots of notes--descriptions, scenes, etc. I just liked writing but didn't have a lot of time. It was all good practice. I hope you will keep at it.